Histones are enriched with:

Botany ·Previously asked in NEET UG 2025

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Question

Histones are enriched with:

  1. A. Lysine & Arginine (Correct answer)
  2. B. Leucine & Lysine
  3. C. Phenylalanine & Leucine
  4. D. Phenylalanine & Arginine

Correct Answer

Option A — Lysine & Arginine

Detailed Solution & Explanation

The correct answer is Lysine & Arginine.

Key Points

  • Histones are positively charged basic proteins that package DNA; they are rich in the basic amino acids lysine and arginine.
  • The positive charge lets them bind the negatively charged DNA to form the nucleosome (histone octamer).

Topics covered: NEET UG 2025 Botany Molecular Basis of Inheritance DNA Packaging